Lexar Silver Plus Drone-Specific Micro SD Card SDXC A2 4K V30 U3 TF card 64GB 128GB 256GB 512GB Read 205MB/s TF

About Capacity: 16GB=approximately 14GB 32GB=approximately 28GB 64GB=approximately 57GB 128GB=approximately 115GB 256GB=approximately 230GB 512GB=approximately 460GB ...... This is calculation difference between manufacturer and your PC, please Google 'Memory card capacity' to get more information. Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes.The pursuit of the perfect person is not recommended to buy. We promise only sale 100% Original the Lexar memory micro card ! Specifications 【Speed】 64GB up to 205MB/s read, up to 100MB/s write¹ 128GB up to 205MB/s read, up to 150MB/s write¹ 256GB up to 205MB/s read, up to 150MB/s write¹ 512GB up to 205MB/s read, up to 150MB/s write¹ *Based on internal testing. Performance may vary depending on the device the card is connected to. USB 3.0 port required. 1MB=1,000,000 bytes. 【Operating Temperature】 -25℃ to 85℃ (-13℉ to 185℉) Storage Temperature】 【-40℃ to 85℃ (-40°F to 185°F) 1 Up to 205MB/s read transfer, write speeds lower. Speeds based on internal testing. Actual performance may vary. 2 Temperature resistance: Operation -25°C to 85°C, Storage -40°C to 85°C. Waterproof: IPX7, 1m deep water for 30min. X-ray protection: up to 100mGy (equivalent to airport X-ray machine exposure) Anti-vibration: 10-2000Hz Anti-Magnetic: 15000Gauss Shock resistance: 1500G shock Drop protection: 1.5m drop Wearout resistance: up to 10,000 times of plugging and unplugging Lexar is not liable for any loss of data or images. Actual usable memory capacity may vary. 1GB equals 1 billion bytes. Question: Why my SD/microSD card does NOT able to reach the speed advertised by the manufacturer? Reply: The speed of SD/microSD can be affected by muitiple factors, eg. computer interface, data cable, card reader, test file size, number of files, etc that you choose. If your SD/microSD card has a low speed, we recommend you to check the following: Check your computer interface, does it support USB3.0 or above? Is the USB interface protocol read by your computer USB3.0 or above? USB2.0 only supports a maximum of 48MB/s.USB3.0 can support maximum speed of 5Gbps or 600MB/s. Check your cable. Is your data cable support the speed higher than the speed of the card? eg. Type C Cable with USB 3.0 can support maximun speed of 600MB/s. Check your card reader. Is the speed supported by the card reader higher than the speed of the card. Due to the proprietary technology used in the Silver series, it is recommended to test the speed with the Lexar RW310x, otherwise the test results may not meet the advertised speed. We recommend you to use a single file larger than 1GB for testing. A large number of small files will affect the testing speed.